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Data Sufficiency

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collection of tough problems from G PREP - 21
by abhasjha »
Machine X and Y work at their respective constant rates. How many...
4
Last post by sanju09
Mon Feb 08, 2010 3:21 am
collection of tough problems from G PREP - 23
by abhasjha »
A construction company was paid a total of $500,000 for a...
1
Last post by shashank.ism
Mon Feb 08, 2010 3:11 am
collection of tough problems from G PREP - 7
by abhasjha »
Each employee on a certain task force is either a manager or a...
4
Last post by shashank.ism
Mon Feb 08, 2010 3:06 am
Married People in City
by harsh.champ »
Twenty five percent of the population of a city is married. The total...
3
Last post by harsh.champ
Mon Feb 08, 2010 2:59 am
collection of tough problems from G PREP - 10
by abhasjha »
What is the greatest common divisor of positive integers m and n? 1)...
5
Last post by sanju09
Mon Feb 08, 2010 1:34 am
collection of tough problems from G PREP - 22
by abhasjha »
If k is a positive integer and the tens digit of k+5 is 4, what is...
5
Last post by abhasjha
Mon Feb 08, 2010 12:36 am
collection of tough problems from G PREP - 19
by abhasjha »
Of 200 members of a certain association each member who speaks German...
2
Last post by abhasjha
Mon Feb 08, 2010 12:34 am
collection of tough problems from G PREP - 18
by abhasjha »
Over a certain time period, did the number of shares of stock in...
4
Last post by abhasjha
Mon Feb 08, 2010 12:33 am
collection of tough problems from G PREP - 17
by abhasjha »
Of the 75 houses in a certain community, 48 have a patio. How many of...
2
Last post by abhasjha
Mon Feb 08, 2010 12:31 am
collection of tough problems from G PREP - 16
by abhasjha »
If x, y, and z are integers and xy+z is an odd integer, is x an even...
4
Last post by abhasjha
Mon Feb 08, 2010 12:29 am
collection of tough problems from G PREP - 15
by abhasjha »
Circle C and line K lie in the xy plane. If circle C is centered at...
3
Last post by abhasjha
Mon Feb 08, 2010 12:28 am
collection of tough problems from G PREP - 14
by abhasjha »
Six countries in a certain region sent a total of 75 representatives...
4
Last post by abhasjha
Mon Feb 08, 2010 12:27 am
collection of tough problems from G PREP - 11
by abhasjha »
If a < y < z < b, is abs(y-a) < abs(y-b)? 1. abs(z-a)...
2
Last post by abhasjha
Mon Feb 08, 2010 12:21 am
collection of tough problems from G PREP - 9
by abhasjha »
If a, b, and c are integers, what is the value of a? (i)...
3
Last post by abhasjha
Mon Feb 08, 2010 12:19 am
collection of tough problems from G PREP - 8
by abhasjha »
In a certain senior class, 72 percent of the male students and 80...
3
Last post by abhasjha
Mon Feb 08, 2010 12:16 am
collection of tough problems from G PREP - 6
by abhasjha »
Is the integer n odd? 1. n is divisible by 3 2. 2n is divisible by...
6
Last post by abhasjha
Mon Feb 08, 2010 12:09 am
collection of tough problems from G PREP - 5
by abhasjha »
A contractor combined x tons of a gravel mixture that contained 10%...
3
Last post by abhasjha
Mon Feb 08, 2010 12:05 am
collection of tough problems from G PREP - 3
by abhasjha »
For each customer, a bakery charges p dollars for the 1st loaf of...
2
Last post by abhasjha
Mon Feb 08, 2010 12:03 am
collection of tough problems from G PREP -2
by abhasjha »
During a sale, a clothing store sold each shirt at a price of $15 and...
2
Last post by abhasjha
Mon Feb 08, 2010 12:01 am
collection of tough problems from G PREP -1
by abhasjha »
If w+x<0,? Is w-y>0 ? 1) x+y<0 2) y<x<w
3
Last post by abhasjha
Sun Feb 07, 2010 11:58 pm
Geometry
by harsh.champ »
The position of the line segment AB at time t = 0 is shown in the...
8
Last post by raisethebar
Sun Feb 07, 2010 10:18 pm
Family members
by harsh.champ »
There are five members in a family - three children and their...
2
Last post by onedayi'll
Sun Feb 07, 2010 8:29 pm
100m relay race
by harsh.champ »
P, Q and R are three contestants, and they are participating in 100 m...
2
Last post by onedayi'll
Sun Feb 07, 2010 8:24 pm
John and Peter Ticket queue
by harsh.champ »
Johnl and Peter are in a queue to purchase tickets. How many people...
2
Last post by onedayi'll
Sun Feb 07, 2010 8:21 pm
Product of x and y
by harsh.champ »
Is the product of x and y greater than 60? 1. The sum of x and y is...
3
Last post by onedayi'll
Sun Feb 07, 2010 8:19 pm
Athletes in School
by harsh.champ »
In a particular school, sixty students were athletes. Ten among them...
3
Last post by onedayi'll
Sun Feb 07, 2010 7:43 pm
P,Q,R,S circular table
by harsh.champ »
P, Q, R, S, T and U sit around a circular table facing to the centre....
3
Last post by onedayi'll
Sun Feb 07, 2010 7:29 pm
Adam,Bob,Chevy,Don and Ernesto
by harsh.champ »
Five students Adam, Bob, Chevy, Don and Ernesto were the only ones...
2
Last post by ajith
Sun Feb 07, 2010 1:21 pm
Average weight
by harsh.champ »
If the average weight of five friends A, B, C, D and E is 52 kg, then...
2
Last post by shashank.ism
Sun Feb 07, 2010 1:01 pm
Company A stock
by harsh.champ »
What was the percent increase of Company A's stock between June 1 and...
2
Last post by shashank.ism
Sun Feb 07, 2010 12:46 pm
Dollar increase
by harsh.champ »
Which company reported the larger dollar increase in earnings? 1....
1
Last post by ajith
Sun Feb 07, 2010 12:44 pm
Cricket,Hockey and Football
by harsh.champ »
In a particular class there are 100 students and the number of...
1
Last post by shashank.ism
Sun Feb 07, 2010 12:41 pm
Call Centre - Engg background
by harsh.champ »
Thirty per cent of the employees of a call centre are males. Ten per...
1
Last post by shashank.ism
Sun Feb 07, 2010 12:40 pm
DS Question : OG 10 - Q96
by mohit11 »
Hi, can any one explain the answer for the following DS question If P...
2
Last post by mohit11
Sun Feb 07, 2010 6:36 am
%
by rahul.s »
Guy's net income equals his gross income minus his deductions. By...
2
Last post by thephoenix
Sun Feb 07, 2010 3:33 am
OG 12th edition - Q # 64
by bhumika.k.shah »
If d denotes a decimal, is d ≥ 0.5 ? (1) When d is rounded to...
6
Last post by Stuart@KaplanGMAT
Sat Feb 06, 2010 11:09 pm
Taxi company and its charges
by bhumika.k.shah »
54. A taxi company charges f cents for the fi rst mile of the taxi...
2
Last post by bhumika.k.shah
Sat Feb 06, 2010 11:10 am
OG 12, Q 38 (Ratios)
by rahul.s »
If p1 and p2 are the populations and r1 and r2 are the numbers of...
3
Last post by bhumika.k.shah
Sat Feb 06, 2010 10:48 am
Rank
by shashank.ism »
Five students Atul, Bala, Chetan, Dev and Ernesto were the only ones...
3
Last post by shashank.ism
Sat Feb 06, 2010 8:28 am
Ratio of population to representatives ; DS Set 18 Q 9
by gmatrant »
If p1 and p2 are the populations and r1 and r2 are the numbers of...
2
Last post by shashank.ism
Sat Feb 06, 2010 7:59 am
collection of tough problems from G PREP - 4
by abhasjha »
does line k intersect quad II (upper left hand quadrant)? 1) slope of...
2
Last post by ajith
Sat Feb 06, 2010 7:17 am
collection of tough problems from G PREP - 13
by abhasjha »
If Bob produces 36 or fewer in a week, he is paid X dollars per item....
1
Last post by harsh.champ
Sat Feb 06, 2010 6:18 am
DS:algebra
by harsh.champ »
Given that 'a' and 'b' are integers and...
6
EXPERT REPLIES
Last post by sanju09
Sat Feb 06, 2010 4:14 am
Inequalities
by zudecj »
Is x^3 >x^2? (1) x>0 (2)x^2>x
4
Last post by sanju09
Sat Feb 06, 2010 3:27 am
Geometry + DS
by harsh.champ »
What is the length of the side AB of triangle ABC? (X) AB <= AC =...
6
Last post by sanju09
Sat Feb 06, 2010 2:35 am
Circular Tub
by money9111 »
A circular tub has a band painted around its circumference. *width of...
14
Last post by money9111
Fri Feb 05, 2010 10:17 am
a = 2 - (1/a)
by sanju09 »
If a = 2 - (1/a), what is the value of integer n? (1) a = 2^n. (2)...
1
Last post by ajith
Fri Feb 05, 2010 6:46 am
OG 12th edition Q # 38
by bhumika.k.shah »
38. If p1 and p2 are the populations and r1 and r2 are the numbers of...
7
Last post by ajith
Fri Feb 05, 2010 6:11 am
DS
by harsh.champ »
If the average size of 3 accounts is $1 million, is the smallest...
7
EXPERT REPLIES
Last post by sanju09
Fri Feb 05, 2010 5:49 am
OG 12th edition Q # 45
by bhumika.k.shah »
45. If r is a constant and an = rn for all positive integers n, for...
6
Last post by sanju09
Fri Feb 05, 2010 4:23 am